Individual extraction constants of some divalent metal cations in the two-phase water–nitrobenzene system
From extraction experiments and γ -activity measurements, the exchange extraction constants corresponding to the general equilibrium M 2+ (aq) + Sr 2+ (nb) ⇄ M 2+ (nb) + Sr 2+ (aq) taking part in the two-phase water–nitrobenzene system (M 2+ = Mg 2+ , Ca 2+ , Ba 2+ , Cu 2+ , Zn 2+ , Cd 2+ , Pb 2+ ,...
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Published in | Journal of radioanalytical and nuclear chemistry Vol. 285; no. 3; pp. 683 - 686 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
01.09.2010
Springer |
Subjects | |
Online Access | Get full text |
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Summary: | From extraction experiments and
γ
-activity measurements, the exchange extraction constants corresponding to the general equilibrium M
2+
(aq) + Sr
2+
(nb) ⇄ M
2+
(nb) + Sr
2+
(aq) taking part in the two-phase water–nitrobenzene system (M
2+
= Mg
2+
, Ca
2+
, Ba
2+
, Cu
2+
, Zn
2+
, Cd
2+
, Pb
2+
,
, Mn
2+
, Fe
2+
, Co
2+
, Ni
2+
; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the individual extraction constants of the M
2+
cations in the mentioned two-phase system were calculated; they were found to increase in the following cation order:
< Zn
2+
, Ni
2+
< Cu
2+
, Cd
2+
< Co
2+
< Mg
2+
< Ca
2+
< Mn
2+
, Fe
2+
< Sr
2+
< Pb
2+
< Ba
2+
. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0236-5731 1588-2780 |
DOI: | 10.1007/s10967-010-0598-1 |